import java.util.List;

public class Demo {
	public static void main(String[] args) {
		Integer integer = 1; //装箱
		int i = integer;// 拆箱

		Integer[] a = {1,2,3,4,5};
		int[] b = {1,2,3,4,5}; // 细节小心使用
		List asList1 = Arrays.asList(a);
		List asList2 = Arrays.asList(b);
		List asList3 = Arrays.asList(1,2,3,4,5);
		System.out.println(asList1);
		System.out.println(asList2);
		System.out.println(asList3);
		
	}
}